Page 79 - MODUL MOMENTUM DAN IMPULS

4. D
∆ = ( − )
1
2
∆ = 0,25 (−30 / − 20 / )

∆ = 0,25 (−50 / )

∆ = 12,5 / ( )

5. D
′
+ = ( + )
1
2
1 1
2 2
′
0,15 .20 / + 0,1 (−0 / ) = (0,15 + 0,1 )
′
3 / = 0,25
3
′
= /
0,25
′
= 12 /

6. B

+ = ( + )
′
1

′
5 .2 / + 3 (−2 / ) = (5 + 3 )
′
10 / − 6 / = 8
′
4 / = 8
4
′
= /
8

= 0,50 /
′
7. C
= =

ℎ (+) ℎ (−)
= 5 / , = −5 /

• Berlaku hukum kekekalan momentum

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